Growth methods of c-axis oriented MgB2 thin films by pulsed laser deposition
作者： V Ferrando , S Amoruso , E Bellingeri , R Bruzzese , P Manfrinetti
DOI: 10.1088/0953-2048/16/2/320
关键词:
摘要: High-quality MgB2 thin films have been obtained by pulsed laser deposition both on MgO and Al2O3 substrates using different methods. In the standard two-step procedure, an amorphous precursor layer is deposited at room temperature starting from stoichiometric target boron target. After this first step, it annealed in a magnesium atmosphere order to crystallize superconducting phase. The show strong c-axis orientation, evidenced XRD analysis, critical up 38 K very high fields along basal planes, 22 T 15 K. Also situ one step technique for realization of has developed. case, presence argon buffer gas during crucial, we observe dependence quality film background pressure. influence Ar confirmed time- space-resolved spectroscopy measurements emission spectrum plume. pressure strongly modifies plasma kinetics promoting excitation ionization plume species, especially most volatile Mg atoms, increasing their internal energy.
core.ac.uk
harvard.edu
sci-hub.se 参考文章(31)
K. Nishida, Y. Takano, H. Abe, J. Ye, A. Matsushita, N. Tsujii, G. Kido, H. Kitazawa, M. Xu, Anisotropy of superconductivity from MgB2 single crystals Applied Physics Letters. ,vol. 79, pp. 2779- 2781 ,(2001) , 10.1063/1.1413729
Kenji Ueda, Michio Naito, As-grown superconducting MgB2 thin films prepared by molecular beam epitaxy Applied Physics Letters. ,vol. 79, pp. 2046- 2048 ,(2001) , 10.1063/1.1405421
H. Hilgenkamp, D. Mijatovic, V. Leca, I. Oomen, H. Rogalla, S. Harkema, D.H.A. Blank, H.J.H. Smilde, F.J.G. Roesthuis, A.A. Golubov, A. Brinkman, G. Rijnders, Superconducting thin films of MgB2 on Si by pulsed laser deposition Physica C-superconductivity and Its Applications. ,vol. 353, pp. 1- 4 ,(2001) , 10.1016/S0921-4534(01)00396-3
C. Ferdeghini, S. Amoruso, R. Bruzzese, N. Spinelli, R. Velotta, X. Wang, Optical emission investigation of laser-produced MgB2 plume expanding in an Ar buffer gas Applied Physics Letters. ,vol. 80, pp. 4315- 4317 ,(2002) , 10.1063/1.1484549
WN Kang, Hyeong-Jin Kim, Eun-Mi Choi, Chang Uk Jung, Sung-Ik Lee, MgB2 Superconducting Thin Films with a Transition Temperature of 39 Kelvin Science. ,vol. 292, pp. 1521- 1523 ,(2001) , 10.1126/SCIENCE.1060822
Kijoon H. P. Kim, Jae-Hyuk Choi, C. U. Jung, P. Chowdhury, Hyun-Sook Lee, Min-Seok Park, Heon-Jung Kim, J. Y. Kim, Zhonglian Du, Eun-Mi Choi, Mun-Seog Kim, W. N. Kang, Sung-Ik Lee, Gun Yong Sung, Jeong Yong Lee, Superconducting properties of well-shaped MgB 2 single crystals Physical Review B. ,vol. 65, pp. 100510- ,(2002) , 10.1103/PHYSREVB.65.100510
Setsuko Tajima, Sergey Lee, Hatsumi Mori, Takahiko Masui, Yuri Eltsev, Ayako Yamamoto, Growth, Structure Analysis and Anisotropic Superconducting Properties of MgB2 Single Crystals Journal of the Physical Society of Japan. ,vol. 70, pp. 2255- 2258 ,(2001) , 10.1143/JPSJ.70.2255
C Ferdeghini, V Ferrando, G Grassano, W Ramadan, E Bellingeri, V Braccini, D Marré, P Manfrinetti, A Palenzona, F Borgatti, R Felici, TL Lee, Growth of c-oriented MgB2 thin films by pulsed laser deposition: structural characterization and electronic anisotropy Superconductor Science and Technology. ,vol. 14, pp. 952- 957 ,(2001) , 10.1088/0953-2048/14/11/311
AS Mahmoud, GJ Russell, MR Koblischka, N Chikumoto, M Murakami, J Horvat, SX Dou, None, Scaling of the magnetic response and field dependence for the characteristic pinning energy in (Y, Nd)Ba2Cu3O7-δ superconductors Superconductor Science and Technology. ,vol. 14, pp. 311- 314 ,(2001) , 10.1088/0953-2048/14/6/303
S. Fähler, K. Sturm, H.-U. Krebs, Resputtering during the growth of pulsed-laser-deposited metallic films in vacuum and in an ambient gas Applied Physics Letters. ,vol. 75, pp. 3766- 3768 ,(1999) , 10.1063/1.125449